Presentation on theme: "C534 Lecture 8: Action observation and the human ‘mirror system’"— Presentation transcript:
C534 Lecture 8: Action observation and the human ‘mirror system’
Mirror neurons The neuron is activated by “seeing” someone else’s hand performing a manipulative action and while the monkey is performing the same action A mirror neuron is a motor neuron that “recognizes” gestures
Action Understanding –Communication, culture, empathy, theory of mind Imitation –Innate ability? –How useful is imitation without the above?
Meaningful actions Decety & Grezes 99 JUST WATCH WATCH AND IMITATE LATER
Table 1 Five scanning conditions repeated in each subject Nature of the stimuliTask instruction Abbreviatio n Stationary hands Observation without any purposeS Learned meaningless movements Observation without any purposeLM Unknown meaningless movements Observation without any purposeUM Learned meaningless movementsObservation to imitateLMi Unknown meaningless movementsObservation to imitateUMi
The effects of learning and intention on the neural network involved in the perception of meaningless actions J. Grèzes. N Costes and J. Decety Brain, Vol. 122, No. 10, 1875-1887 +Intention to Imitate Common area for all conditions Viewing hand movements
Imitating 2x2 factorial from visual and motor aspects of imitation Body schema: Use same limb as model Action: Make same movement Interaction = motor mimicry, true imitation Chaminade et al (2005) Neuropsychologia 43, 115-127